use of spoon.reflect.code.CtBlock in project spoon by INRIA.
the class TemplateTest method testTemplateInheritance.
@Test
public void testTemplateInheritance() throws Exception {
Launcher spoon = new Launcher();
Factory factory = spoon.getFactory();
spoon.getEnvironment().setCommentEnabled(true);
spoon.createCompiler(factory, SpoonResourceHelper.resources("./src/test/java/spoon/test/template/testclasses/inheritance/SubClass.java", "./src/test/java/spoon/test/template/testclasses/inheritance/SuperClass.java"), SpoonResourceHelper.resources("./src/test/java/spoon/test/template/testclasses/inheritance/SubTemplate.java", "./src/test/java/spoon/test/template/testclasses/inheritance/SuperTemplate.java")).build();
// Collects type members which should contain generated by comment
final Map<CtElement, String> elementToGeneratedByMember = new IdentityHashMap<>();
CtClass<?> superc = factory.Class().get(SuperClass.class);
new SuperTemplate().addGeneratedBy(true).apply(superc);
CtMethod<?> addedMethod = superc.getElements(new NamedElementFilter<>(CtMethod.class, "toBeOverriden")).get(0);
assertEquals("toBeOverriden", addedMethod.getSimpleName());
elementToGeneratedByMember.put(addedMethod, "#toBeOverriden");
CtClass<?> subc = factory.Class().get(SubClass.class);
SubTemplate template = new SubTemplate();
template.addGeneratedBy(true);
template.params = new ArrayList<>();
CtParameter<Integer> parameter = factory.Core().createParameter();
parameter.setSimpleName("x");
parameter.setType(factory.Type().createReference(int.class));
template.params.add(parameter);
// templating the invocation
template.invocation = factory.Code().createInvocation(null, addedMethod.getReference());
// templating the foreach
template.intValues = new CtExpression[2];
template.intValues[0] = factory.Code().createLiteral(0);
template.intValues[1] = factory.Code().createLiteral(1);
// we apply the extension template to subc
template.apply(subc);
CtMethod<?> addedMethod2 = subc.getElements(new NamedElementFilter<>(CtMethod.class, "toBeOverriden")).get(0);
assertEquals("toBeOverriden", addedMethod2.getSimpleName());
assertEquals("super.toBeOverriden()", addedMethod2.getBody().getStatements().get(0).toString());
elementToGeneratedByMember.put(addedMethod2, "#toBeOverriden");
// contract; method parameter templates are handled
CtMethod<?> methodWithTemplatedParameters = subc.getElements(new NamedElementFilter<>(CtMethod.class, "methodWithTemplatedParameters")).get(0);
assertEquals("methodWithTemplatedParameters", methodWithTemplatedParameters.getSimpleName());
assertEquals("x", methodWithTemplatedParameters.getParameters().get(0).getSimpleName());
assertEquals("int x", methodWithTemplatedParameters.getParameters().get(0).toString());
elementToGeneratedByMember.put(methodWithTemplatedParameters, "#methodWithTemplatedParameters");
// contract: nested types of the templates are copied
assertEquals(1, subc.getNestedTypes().size());
elementToGeneratedByMember.put(subc.getNestedTypes().iterator().next(), "$InnerClass");
// contract: methods are renamed
assertEquals(1, subc.getMethodsByName("newVarName").size());
CtMethod<?> varMethod = subc.getMethodsByName("newVarName").get(0);
elementToGeneratedByMember.put(varMethod, "#var");
// contract: parameters are replaced in comments too. The Class parameter value is converted to String
assertEquals("newVarName", varMethod.getComments().get(0).getContent().split("[\\n\\r]+")[0]);
assertEquals("{@link LinkedList}", varMethod.getComments().get(1).getContent());
assertEquals("{@link SuperClass#toBeOverriden()}", varMethod.getComments().get(2).getContent());
// contract: variable are renamed
assertEquals("java.util.List newVarName = null", methodWithTemplatedParameters.getBody().getStatement(0).toString());
// contract: types are replaced by other types
assertEquals("java.util.LinkedList l = null", methodWithTemplatedParameters.getBody().getStatement(1).toString());
// contract: casts are replaced by substitution types
assertEquals("java.util.List o = ((java.util.LinkedList) (new java.util.LinkedList()))", methodWithTemplatedParameters.getBody().getStatement(2).toString());
// contract: invocations are replaced by actual invocations
assertEquals("toBeOverriden()", methodWithTemplatedParameters.getBody().getStatement(3).toString());
// contract: foreach in block is inlined into that wrapping block
CtBlock templatedForEach = methodWithTemplatedParameters.getBody().getStatement(4);
assertEquals("java.lang.System.out.println(0)", templatedForEach.getStatement(0).toString());
assertEquals("java.lang.System.out.println(1)", templatedForEach.getStatement(1).toString());
// contract: foreach with single body block are inlined without extra block
assertEquals("java.lang.System.out.println(0)", methodWithTemplatedParameters.getBody().getStatement(5).toString());
assertEquals("java.lang.System.out.println(1)", methodWithTemplatedParameters.getBody().getStatement(6).toString());
// contract: foreach with double body block are inlined with one extra block for each inlined statement
assertEquals("java.lang.System.out.println(0)", ((CtBlock) methodWithTemplatedParameters.getBody().getStatement(7)).getStatement(0).toString());
assertEquals("java.lang.System.out.println(1)", ((CtBlock) methodWithTemplatedParameters.getBody().getStatement(8)).getStatement(0).toString());
// contract: foreach with statement are inlined without extra (implicit) block
assertFalse(methodWithTemplatedParameters.getBody().getStatement(9) instanceof CtBlock);
assertEquals("java.lang.System.out.println(0)", methodWithTemplatedParameters.getBody().getStatement(9).toString());
assertFalse(methodWithTemplatedParameters.getBody().getStatement(10) instanceof CtBlock);
assertEquals("java.lang.System.out.println(1)", methodWithTemplatedParameters.getBody().getStatement(10).toString());
// contract: for each whose expression is not a template parameter is not inlined
assertTrue(methodWithTemplatedParameters.getBody().getStatement(11) instanceof CtForEach);
// contract: local variable write are replaced by local variable write with modified local variable name
assertEquals("newVarName = o", methodWithTemplatedParameters.getBody().getStatement(12).toString());
// contract: local variable read are replaced by local variable read with modified local variable name
assertEquals("l = ((java.util.LinkedList) (newVarName))", methodWithTemplatedParameters.getBody().getStatement(13).toString());
// contract; field access is handled same like local variable access
CtMethod<?> methodWithFieldAccess = subc.getElements(new NamedElementFilter<>(CtMethod.class, "methodWithFieldAccess")).get(0);
elementToGeneratedByMember.put(methodWithFieldAccess, "#methodWithFieldAccess");
elementToGeneratedByMember.put(subc.getField("newVarName"), "#var");
// contract: field write are replaced by field write with modified field name
assertEquals("newVarName = o", methodWithFieldAccess.getBody().getStatement(2).toString());
// contract: field read are replaced by field read with modified field name
assertEquals("l = ((java.util.LinkedList) (newVarName))", methodWithFieldAccess.getBody().getStatement(3).toString());
class Context {
int nrTypeMembers = 0;
int nrOthers = 0;
}
final Context ctx = new Context();
// contract: each CtTypeMember has `Generated by ` with appropriate template class name, member name and line number
superc.filterChildren(null).forEach((CtElement e) -> {
if (e instanceof CtTypeMember) {
ctx.nrTypeMembers++;
assertCommentHasGeneratedBy(e, SuperTemplate.class.getName(), elementToGeneratedByMember);
} else {
ctx.nrOthers++;
assertTrue(e.getDocComment() == null || e.getDocComment().indexOf("Generated by") == -1);
}
});
assertTrue(ctx.nrTypeMembers > 0);
assertTrue(ctx.nrOthers > 0);
ctx.nrTypeMembers = 0;
ctx.nrOthers = 0;
subc.filterChildren(null).forEach((CtElement e) -> {
if (e instanceof CtTypeMember) {
ctx.nrTypeMembers++;
assertCommentHasGeneratedBy(e, SubTemplate.class.getName(), elementToGeneratedByMember);
} else {
ctx.nrOthers++;
assertTrue(e.getDocComment() == null || e.getDocComment().indexOf("Generated by") == -1);
}
});
assertTrue(ctx.nrTypeMembers > 0);
assertTrue(ctx.nrOthers > 0);
}
use of spoon.reflect.code.CtBlock in project spoon by INRIA.
the class ReplaceTest method testReplaceStmtByList.
@Test
public void testReplaceStmtByList() {
CtClass<?> sample = factory.Package().get("spoon.test.replace.testclasses").getType("Foo");
// replace retry content by statements
CtStatement stmt = sample.getMethod("retry").getBody().getStatement(0);
CtBlock lst = sample.getMethod("statements").getBody();
// replace a single statement by a statement list
stmt.replace(lst);
// we should have only 2 statements after (from the stmt list)
assertEquals(1, sample.getMethod("retry").getBody().getStatements().size());
assertEquals(2, ((CtBlock) sample.getMethod("retry").getBody().getStatement(0)).getStatements().size());
}
use of spoon.reflect.code.CtBlock in project spoon by INRIA.
the class LoggerTemplateProcessor method process.
@Override
public void process(CtMethod<T> element) {
final CtBlock log = new LoggerTemplate(element.getDeclaringType().getSimpleName(), element.getSimpleName(), element.getBody()).apply(element.getDeclaringType());
element.setBody(log);
}
use of spoon.reflect.code.CtBlock in project spoon by INRIA.
the class ImportScannerImpl method lookForLocalVariables.
protected Set<String> lookForLocalVariables(CtElement parent) {
Set<String> result = new HashSet<>();
// if the first container is the class, then we are not in a block and we can quit now.
while (parent != null && !(parent instanceof CtBlock)) {
if (parent instanceof CtClass) {
return result;
}
parent = parent.getParent();
}
if (parent != null) {
CtBlock block = (CtBlock) parent;
boolean innerClass = false;
// now we have the first container block, we want to check if we're not in an inner class
while (parent != null && !(parent instanceof CtClass)) {
parent = parent.getParent();
}
if (parent != null) {
// let's find the last block BEFORE the class call: some collision could occur because of variables defined in that block
if (!(parent.getParent() instanceof CtPackage)) {
while (parent != null && !(parent instanceof CtBlock)) {
parent = parent.getParent();
}
if (parent != null) {
block = (CtBlock) parent;
}
}
}
AccessibleVariablesFinder avf = new AccessibleVariablesFinder(block);
List<CtVariable> variables = avf.find();
for (CtVariable variable : variables) {
result.add(variable.getSimpleName());
}
}
return result;
}
use of spoon.reflect.code.CtBlock in project spoon by INRIA.
the class ReplaceScanner method updateSetter.
private void updateSetter(Factory factory, CtMethod<?> setListener, CtTypeReference getterType, CtField<?> field, CtMethod setter) {
setListener.getParameters().get(0).setType(getterType);
CtInvocation ctInvocation = //
factory.Code().createInvocation(//
factory.Code().createVariableRead(field.getReference(), false), //
setter.getReference(), //
factory.Code().createVariableRead(setListener.getParameters().get(0).getReference(), false));
CtBlock ctBlock = factory.Code().createCtBlock(ctInvocation);
setListener.setBody(ctBlock);
}
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